Alert archive / Virginia / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 310, NWS Blacksburg, VA

August 26, 2010Rockbridge County, City of Buena Vista, City of Lexington, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Aug 26, 2010, 3:34 PM EDT for Rockbridge County, City of Buena Vista, City of Lexington, Virginia. It was in force for 56 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 26, 2010, 3:34 PM EDT (19:34 UTC)
Expired: Aug 26, 2010, 4:30 PM EDT
In force: 56 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon

Counties City of Buena Vista, VA, City of Lexington, VA, Rockbridge County, VA

The radar

The Roanoke radar (KFCX), 109 km from the middle of the area, began a volume at 19:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 7.6 hours before the alert went out and 59 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 289 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 656 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 22 m²/s²
0-3 km storm-relative helicity: -20 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000
WUUS51 KRNK 261934
SVRRNK
VAC163-530-678-262030-
/O.NEW.KRNK.SV.W.0310.100826T1934Z-100826T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
334 PM EDT THU AUG 26 2010

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CITY OF BUENA VISTA IN WEST CENTRAL VIRGINIA
  CITY OF LEXINGTON IN WEST CENTRAL VIRGINIA
  SOUTHERN ROCKBRIDGE COUNTY IN WEST CENTRAL VIRGINIA

* UNTIL 430 PM EDT.

* AT 330 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  COLLIERSTOWN...AND MOVING SOUTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  COLLIERSTOWN...
  LEXINGTON CITY...
  BUENA VISTA CITY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF QUARTER OR
LARGER SIZED HAIL...AS WELL AS WIND DAMAGE...INCLUDING TREES OR LARGE
LIMBS DOWNED BY CALLING THE NATIONAL WEATHER SERVICE TOLL FREE AT...
1...8 6 6...2 1 5...4 3 2 4.

&&

LAT...LON 3775 7930 3772 7931 3771 7932 3764 7938
      3762 7942 3776 7966 3783 7959
TIME...MOT...LOC 1934Z 300DEG 11KT 3778 7957

$$

DS

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 26, 2:26 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Botetourt	64 min
Aug 26, 3:56 PM EDT	Special Weather Statement	RNK	Amherst	34 min
Aug 26, 4:09 PM EDT	Severe Thunderstorm Warning	RNK	Amherst	40 min
Aug 26, 4:29 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Pittsylvania	61 min
Aug 26, 4:31 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bedford, Campbell, City of Lynchburg	59 min
Aug 26, 4:39 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Henry, Patrick	66 min
Aug 26, 4:52 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	58 min
Aug 26, 5:00 PM EDT	Special Weather Statement	RNK	Appomattox	30 min
Aug 26, 5:17 PM EDT	Special Weather Statement	RNK	Carroll	28 min
Aug 26, 5:28 PM EDT	Special Weather Statement	RNK	Pittsylvania	32 min
Aug 26, 5:43 PM EDT	Special Weather Statement	RNK	Campbell	32 min
Aug 26, 5:53 PM EDT	Special Weather Statement	RNK	Patrick	37 min
Aug 26, 6:33 PM EDT	Special Weather Statement	RNK	Patrick, City of Martinsville	27 min
Aug 26, 6:52 PM EDT	Severe Thunderstorm Warning	RNK	Henry, City of Martinsville	53 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2010 Every severe thunderstorm warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.